package rescuecore2.standard.messages;

import java.io.InputStream;
import java.io.IOException;

import org.json.JSONObject;

import rescuecore2.messages.AbstractCommand;
import rescuecore2.messages.components.EntityIDComponent;
import rescuecore2.worldmodel.EntityID;

/**
 * An agent Rescue command.
 */
public class AKRescue extends AbstractCommand {

  private EntityIDComponent target;


  /**
   * An AKRescue message that populates its data from a stream.
   *
   * @param in
   *          The InputStream to read.
   * @throws IOException
   *           If there is a problem reading the stream.
   */
  public AKRescue( InputStream in ) throws IOException {
    this();
    read( in );
  }


  /**
   * Construct an AKRescue command.
   *
   * @param agent
   *          The ID of the agent issuing the command.
   * @param time
   *          The time the command was issued.
   * @param target
   *          The id of the entity to rescue.
   */
  public AKRescue( EntityID agent, int time, EntityID target ) {
    this();
    setAgentID( agent );
    setTime( time );
    this.target.setValue( target );
  }


  private AKRescue() {
    super( StandardMessageURN.AK_RESCUE );
    target = new EntityIDComponent( "Target" );
    addMessageComponent( target );
  }


  /**
   * Get the desired target.
   *
   * @return The target ID.
   */
  public EntityID getTarget() {
    return target.getValue();
  }


  @Override
  public JSONObject toJson() {
    JSONObject jsonObject = super.toJson();
    jsonObject.put( "Target", this.getTarget() );

    return jsonObject;
  }
}
